======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '320'
                                          'artist'  'Penguin Cafe Orchestra'
                                     'text_people'  ''
                                         'release'  'Concert Program (disc 2)'
                                           'title'  'Steady State'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'contemporary classical', 'new age', 'classical', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-salon or easy'
                                             'bpm'  '143.314'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Concert Program (disc 2)'
'TBPM' (BPM (beats per minute))                     '143.314'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-salon or easy'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Steady State'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Penguin Cafe Orchestra'
'TRCK' (Track number/Position in set)               '7'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MusicMagic Data'                              'AgEAETWhmezB4ot9gIKnwUqdJkyQSoACDNaajynegAHJSrM0gAH6PKIngAGNyoABggKAAbrcVkHfQIABgAGoRget3LyAAaQxgAKAAZn5uECnrIIq2uYry8gUhoiAQQcmmqMb6oCizWCVSYLz+3GseYZ8tK6ACIbEgAG5vkTH2bqeCIABqUsDpeZ1inijaIHggAE='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'contemporary classical', 'new age', 'classical', 'ambient']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.38 dB'
'TXXX:replaygain_track_peak'                        '0.725528'

========================== row from database ==========================
                                              'id'  673920
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Penguin Cafe Orchestra/16. Steady State.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  320
                                           'genre'  prerock-jb-jazz-soft-salon or easy
                                        'filesize'  7688686
                                           'mtime'  1620533554
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 16. prerock jb jazz soft salon or easy
                                      'tag_artist'  Penguin Cafe Orchestra
                                     'tag_release'  Concert Program (disc 2)
                                       'tag_title'  Steady State
                                             'bpm'  143.314
                                    'search_title'  'state':2 'steady':1
                                   'search_artist'  'cafe':2 'orchestra':3 'penguin':1
                                  'search_release'  '2':5,6 'concert':1 'disc':3,4 'program':2
                                     'search_rest'  '16':5,6 'country':4 'easy':12 'exotica':2 'jazz':1 'jb':8 'oldies':3 'or':11 'prerock':7 'salon':10 'soft':9
                                    'search_combo'  '16':16,17 '2':10C,11C 'cafe':4B 'concert':6C 'country':15 'disc':8C,9C 'easy':23 'exotica':13 'jazz':12 'jb':19 'oldies':14 'or':22 'orchestra':5B 'penguin':3B 'prerock':18 'program':7C 'salon':21 'soft':20 'state':2A 'steady':1A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'contemporary classical', 'new age', 'classical', 'ambient']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620533553.5563543  (2021-05-09 06:12:33)
                             'size'  7688686